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Re: SP’s SDP 45’s what led to their Demise?
Author: OPRRMS
Date: 04-23-2018 - 21:41

George Andrews Wrote:
-------------------------------------------------------
> Espee's SDP - 45's had high - speed gearing and,
> for commute service, electrical modifications
> involving current feed to traction motors. Perhaps
> these differences were enough to keep them out of
> the Sacramento Rebuild program.

Delivered with 62:15 (70 MPH) gearing.

Regeared to 60:17 (79 MPH) in 1968-1969.

All except 3201 and 3207 were regeared back to 62:15 upon assignment to the Commute Pool, at which time all 10 received a "COM/FRT-PASS" toggle switch to select the transition settings when used in commute or freight/passenger service.

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Subject Written By Date/Time (PST)
  SDP’s in their final hour HUTCH 7.62 04-22-2018 - 19:51
  Re: SDP’s in their final hour JOHN 04-22-2018 - 23:56
  SP’s SDP 45’s what led to their Demise? HUTCH 7.62 04-23-2018 - 11:38
  Re: SP’s SDP 45’s what led to their Demise? AZebra 04-23-2018 - 11:52
  Re: SP’s SDP 45’s what led to their Demise? OPRRMS 04-23-2018 - 18:58
  Re: SP’s SDP 45’s what led to their Demise? OPRRMS 04-23-2018 - 19:02
  Re: SP’s SDP 45’s what led to their Demise? OPRRMS 04-23-2018 - 18:52
  Re: SP’s SDP 45’s what led to their Demise? George Andrews 04-23-2018 - 20:37
  Re: SP’s SDP 45’s what led to their Demise? OPRRMS 04-23-2018 - 21:41


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